The Democratic primary could be over by the end of this week. On Tuesday night, all of the states will have voted so the Obama campaign is hoping to secure the last superdelegates needed to claim victory that evening.

A part of Barack Obama's process must be to determine what to do with Hillary Clinton and her loyal supporters if he can clinch the nomination this week.

The Democrats' only chance might be to put both Obama and Clinton on their ticket this year.

"Senator Clinton has run an outstanding race, she is an outstanding public servant and she and I will be working together in November," Obama said.

Senator Obama also told reporters on Monday evening that "once the dust settled" he wants to meet with Hillary "at a time and place of her choosing."